servant-pipes-0.15: dependencies

Dependencies for servant-pipes-0.15

library	base (>=4.9 && <5) bytestring (>=0.10.8.1 && <0.11) monad-control (>=1.0.2.3 && <1.1) mtl (>=2.2.2 && <2.3) pipes (>=4.3.9 && <4.4) pipes-safe (>=2.3.1 && <2.4) servant (>=0.15 && <0.16)